update

app/Http/Controllers/Admin/OtherController.php

@@ -407,7 +407,6 @@ class OtherController extends CommonController
             case 'course_signs_pass_unique':
                 // 审核通过人数去重明细 - 使用courseSignsTotalByUnique方法获取列表
                 $users = CourseSign::courseSignsTotalByUnique($start_date, $end_date, 1, $course_ids, null, true);
-                dd($users->count());
                 foreach ($users as $user) {
                     // 获取该学员报名的课程列表（与coursesHome逻辑保持一致）
                     $userCourseSigns = CourseSign::where('user_id', $user->id)

app/Models/CourseSign.php

@@ -139,7 +139,7 @@ class CourseSign extends SoftDeletesModel
         $user = User::whereIn('id', $courseSignByType->pluck('user_id'))->distinct('mobile');
         if ($retList) {
             // 列表
-            return $user->get();
+            return $user->groupBy('mobile')->get();
         } else {
             // 统计数据
             return $user->count();